| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | who has [verb] the post | 6 |
|
| 2 | [Wh pn] has [vb pp] the post | 6 |
|
| 3 | [Wh pn] has hold the post | 5 |
|
| 4 | [Wh pn] has held the post | 5 |
|
